Figure 5 (PPPoA Connection Setup)
To complete the connection you must now click the
apply button. The apply button will temporarily
save this connection. To make the change perma-
nent you need to click on Save Setting (at the side
of the page). At the system commands page, click
on Save All.
4.4.1.3 PPPoE Connection Setup
PPPoE is also known as RFC 2516. It is a method of
encapsulating PPP packets over Ethernet. PPP or
Point-to-Point protocol is a method of establishing a
network connection/session between network hosts.
It usually provides a mechanism of authenticating
users.
To configure the gateway for PPPoE, click on Setup
and then click on New Connection. The default
PPPoE connection setup is displayed. At the Type
field select PPPoE and the PPPoE connection setup
page is displayed; figure 6 illustrates a typical PPPoE
configuration. Give your PPPoE connection a unique
name; the name must not have spaces and cannot
begin with numbers. In this case the unique name
is called PPPoE1. Select the encapsulation type (LLC
or VC); if you are not sure just use the default mode.
Select the VPI and VCI settings; your DSL service
provider or your ISP will supply these; in this case
the DSL service provider is using 0,100. Also select
the quality of service (QOS); leave the default value
if you are unsure or the ISP did not provide this
information.
Following is a description
of the different options:
h.) Username: The username for the PPPoE
access; this is provided by your DSL service
provider or your ISP.
i.) Password: The password for the PPPoE
access; this is provided by your DSL service
provider or your ISP.
j.) On-Demand: Enables on-demand mode. The
connection will disconnect if no activity is
detected after the specified idle timeout
value.
k.) Idle Timeout: Specifies that PPPoE connection
should disconnect if the link has no activity
detected for n seconds. This field is used in
conjunction with the On-Demand feature. To
ensure that the link is always active, enter a
0 in this field.
l.) Keep Alive: When on-demand option is not
enable, this value specifies the time to wait
without being connected to your provider
before terminating the connection. To ensure
that the link is always active, enter a 0 in this
field.
m.) Set Route: Specify this connection as the
default-route.
n.) MRU: Maximum Receive Unit the DSL con-
nection can receive. It is a negotiated value
that asks the provider to send packets of no
more than n bytes. The maximum specified
value is 1500 although some DSL/ISP provi-
ders require a larger value. The minimum
MRU value is 128.
o.) Enforce MRU: Check this box if you experien-
ce problems accessing the Internet over a
PPPoE connection. This feature will force all
TCP traffic to conform with PPP MRU by
changing TCP Maximum Segment Size to
PPP MRU.
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